If the mail was delivered to an incorrect address, return the envelope and contents to the mail pickup and delivery station for rerouting.

If part of the mail is addressed to another branch, forward it to that branch. If the address cannot be determined, return it to the Incoming Mail Section, Upper Basement (UB-37) with an explanation.

Place mail determined to be the responsibility of another Department, Administration or Agency of the Federal Government in an interoffice envelope. Forward it to the Outgoing Mail Section, Lower Basement (LB-37).